RTFA: http://news.bbc.co.uk/2/hi/middle_east/7026754.stm

Washington’s military commitments to Iraq and Afghanistan would hamstring an attempt to wage war on Iran, the Iranian foreign minister has said.

“Our analysis is clear: [the] US is not in a position to impose another war in our region, against their taxpayers,” Manouchehr Mottaki told reporters.

Hey Iran, little bit of advice… don’t taunt America. We may not send troops into Iran, but sending nukes is always ‘on the table’, as Bush would say. The difference between occupying a country vs. blowing the shit out of it is about $9 billion dollars per month.